Chassis reference

Type O 12-bolt cast-iron rear axle

rear axle · standard

1970 Oldsmobile 442 W30 photographed by Sicnag; used as W-30 side-stripe and rear-quarter context. 1970 Oldsmobile 442 W-30

Reference Details

Availability: standard
Limited-slip: Yes
Notes: Standard factory performance axle ratio for W-30 configurations with manual or automatic transmissions, excluding those with air conditioning.
Ratio: 3.42:1
Type: rear axle

1 linked car page.

1970 Oldsmobile

Oldsmobile 4-4-2 with W-30 performance package